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6 BALANCE Switch
7 Fuel BALANCE FAULT Light
1 Fuel Jettison NOZZLE Switches
OVERHEAD PANEL
VALVE VALVE
ON ON
FUEL TO
REMAIN
PULL ON
FUEL JETTISON
L NOZZLE R ARM
ARMED
FAULT
3
4
1
5
2
787 Flight Crew Operations Manual
Fuel -
Controls and Indicators
Boeing Proprietary 12.10.3
Off (ON not visible) – the jettison nozzle valve is selected closed.
Illuminated (amber) – the jettison nozzle valve is not in the selected position.
ARMED –
• arms the jettison system
• initializes fuel–to–remain at the MLW fuel quantity.
Off (ARMED not visible) – disarms the jettison system.
Illuminated (amber) –
• a system fault has occurred
• fuel jettison is inoperative.
PULL ON– changes the mode from MLW (maximum landing weight) to MAN
(manual).
Rotate –
• rotate CW to increase, CCW to decrease the MANUAL fuel–to–remain
quantity
Push – automatically selects the MLW fuel–to–remain quantity.
Fuel Indications
Normal Fuel Indications
Total fuel quantity (pounds x 1000).
Fuel temperature (degrees Celsius).
2 Fuel Jettison Nozzle VALVE Lights
3 Fuel Jettison ARM Switch
4 Fuel Jettison FAULT Light
5 FUEL TO REMAIN Selector
1 Normal Fuel Indications
465.5 LBS X 215.5
1000
SAT -10c
GROSS WT
FUEL +13c
TEMP
TOTAL FUEL
EICAS DISPLAY
1
787 Flight Crew Operations Manual
Fuel -
Controls and Indicators
12.10.4 Boeing Proprietary
Expanded Fuel Indications
The expanded FUEL QTY display (left main, center, and right main tank
quantities) appears for any of the following conditions:
• crossfeed valve open
• one or more fuel tank quantity indications are inoperative
• the FUEL IN CENTER alert message is displayed (center tank quantity is
amber)
• the FUEL QTY LOW alert message is displayed (low main tank quantity
is amber)
• the FUEL LOW CENTER alert message is displayed (low center tank
quantity is amber)
• the FUEL IMBALANCE alert message is displayed
• the airplane is on the ground and both engine(s) off
• the balance system is active
• the balance system is selected on and fuel is already balanced.
A fuel imbalance pointer is displayed on the expanded fuel quantity display next
to the low tank quantity for the following imbalance conditions.
A solid white pointer is displayed if:
• main tank fuel differs more than 200 pounds and the crossfeed valve is
open or the balance system is ON.
1 Expanded Fuel Indications
2 Fuel Imbalance Indications
FUEL BALANCED
24.1 0.0 24.1
FUEL QTY
25.7 0.0 23.2
-10c +13c
LBS X
GROSS WT TOTAL FUEL
FUEL
TEMP
1000
SAT
465.5 215.5
FUEL QTY
33.0 149.5 33.0
EICAS DISPLAY
1
2
787 Flight Crew Operations Manual
Fuel -
Controls and Indicators
Boeing Proprietary 12.10.5
A solid amber fuel imbalance pointer replaces the white pointer if the FUEL
IMBALANCE message is displayed. The difference in fuel quantity which causes
the FUEL IMBALANCE message to be displayed varies with total main tank fuel
quantity.
The fuel imbalance pointer flashes if fuel balancing is going in the wrong
direction.
A flashing FUEL BALANCED indication replaces the FUEL QTY indication on
the expanded fuel quantity display when the crossfeed is open or the balance
system is ON and main tank quantites are within 200 pounds of each other.
Fuel Jettison Indications
Fuel to remain (fuel jettison ARMED):
• the fuel to remain defaults to a fuel quantity that will leave the airplane at
maximum landing weight (MLW) when jettison is complete
• the fuel to remain display replaces the fuel temperature and static air
temperature displays.
Fuel to remain MAN (manual) selection is displayed:
• fuel jettison system is ARMED
• the FUEL TO REMAIN selector is pulled on
• the quantity to remain can be changed by rotating FUEL TO REMAIN
selector.
Fuel Synoptic Display
The fuel synoptic is displayed by pushing the systems (SYS) display switch on the
display select panel, then selecting the FUEL synoptic key. Display select panel
operation is described in Chapter 10, Flight Instruments, Displays.
1 Fuel Jettison Indications
465.5
365.0
215.5
115.0
LBS X
MLW
TO REMAIN
1000
GROSS WT TOTAL FUEL
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787机组操作手册Flight Crew Operations Manual 3(98)
